ISC BIND 9.10.5-S1 < 9.11.5-S6 Assertion Failure Vulnerability

high Nessus Plugin ID 124562
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote name server is affected by an assertion failure vulnerability.

Description

ISC BIND versions 9.11.5-S5 and earlier are affected by an error in the nxdomain-redirect feature in versions which support EDNS Client Subnet (ECS) features. In those versions which have ECS support, enabling nxdomain-redirect is likely to lead to BIND exiting due to assertion failure.

Solution

Upgrade to ISC BIND version 9.11.6-S5, 9.11.6-S1, or later.

See Also

https://kb.isc.org/docs/aa-00861

https://kb.isc.org/docs/aa-00913

https://kb.isc.org/docs/cve-2019-6468

Plugin Details

Severity: High

ID: 124562

File Name: bind9_CVE-2019-6468.nasl

Version: 1.4

Type: remote

Family: DNS

Published: 5/3/2019

Updated: 5/22/2020

Dependencies: bind_version.nasl

Configuration: Enable paranoid mode

Risk Information

CVSS Score Source: CVE-2019-6468

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:isc:bind

Required KB Items: bind/version, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 4/24/2019

Vulnerability Publication Date: 4/24/2019

Reference Information

CVE: CVE-2019-6468

BID: 108070

IAVA: 2019-A-0139-S